Pennsylvania Transformer Technology Inc.

Pennsylvania Transformer Technology Inc. (PTTI) is an industry leading manufacturer of a wide range of sizes and types of power transformers for electric utility and industrial applications. PTTI is a US-owned power transformer company with a rich heritage that dates back to the late 1920's. Within its two locations, PTTI manufactures transformers rated from 5MVA to 600MVA and 345kV.


Pennsylvania Transformer has the luxury of two domestic production facilities.  We have two world-class facilities supported by continuous capital investments and experienced work forces.

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Parts & Services

PTTI’s Technical Service Department is located in our Canonsburg, PA headquarters.  The department consists of Inside Sales, Field Service Technicians, and Engineering/Drafting personnel. You can count on PTTI’s Technical Service Department to provide you thorough, high-quality, and timely service through the life of your equipment.

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Pennsylvania Transformer has the luxury of two domestic production facilities that manufacture power transformers. We have been building transformers in our Canonsburg, PA facility since the 1950s and in our Raeford, NC facility since it was built in 1992.  Experience matters.

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Almost a Century of Experience

We have a rich heritage that dates back almost a century. Our headquarters is located in Canonsburg, PA and is the former site of McGraw-Edison and Cooper Power Systems transformer operations.  Our Raeford facility has been producing transformers for almost 30 years.  Proven designs. Proven processes.  Experience matters.

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